Hey there, so I dont know if this is the right place or appropriate spot to ask this question is this thread but anyways... After seeing the shotty job the person before me did to the silicone it is a must to redo it. The tanks dimensions are 72 by 36 by 27 how much silicone do you think I need? Thanks any info will help, info that may help is I plan on doing a 1/2" bead as that is the thickness of the glass. I've resealed smaller tanks just never something of this size